Rain World is a post-apocalyptic survival platform game set in a world with incessant rain and harsh conditions. The gamer takes on the role of a small, slug-like creature known as a Slugcat. The game begins with the user being separated from his family and must make his way through the ruins of an abandoned industrial complex to find his way home. Gameplay is focused on exploration and survival. The gamer must navigate through levels that are full of dangerous creatures and environmental threats. Along the way, the user can collect resources such as food and materials that will help him survive. The player must also avoid encounters with predators, including giant lizards.

Rain World Downpour — is an add-on to the Rain World game. Control five new characters with new abilities in this massive reimagined world. Slugs have adapted to harsh conditions along with evolved predators. Survive new environments, dangers and explore uncharted territories. Return to the unshakable wilderness in Downpour where you explore harsh new lands and survive new predators. Over time, the snail evolved. With five species to choose from use the different skills they have to your advantage and explore their own personal stories.